Grosskreutz and Kuba were both playing more like wide midfielders.
They worked with Schmelzer and Owomoyela on the flanks to shut down Bayern's wings.
And in the midfield, the presence of three defensive midfielders meant Bayern couldn't gain even the slightest advantage.
This was especially true for Santana.
The Brazilian center-back, who had underperformed previously, was incredibly solid in this match, completely freezing out Gomez.
Even after going up 3-0, when Dortmund eased up on their attack and Bayern stabilized to mount a counteroffensive, Santana still didn't give Gomez an inch.
Throughout the entire first half, Bayern Munich was completely unable to create any effective scoring opportunities.
How absurd was it?
Bayern's first shot of the entire match didn't come until the 28th minute.
Nearly half an hour!
In the first 15 minutes, Dortmund's possession reached as high as 63%.
The game was almost completely one-sided.
